Не создается всплывающее окно

#include "stdafx.h"
#include "DIARY3.h"
 
 
 
#define MAX_LOADSTRING 100
 
// Global Variables:
HINSTANCE hInst;                                // current instance
TCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name
TCHAR SecondWindowClassName[MAX_LOADSTRING] = _T("SecondWindowClass");
 
 
// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK    SecWndProc(HWND, UINT, WPARAM, LPARAM);
 
 
int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);
 
    // TODO: Place code here.
    MSG msg;
    HACCEL hAccelTable;
 
    // Initialize global strings
    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadString(hInstance, IDC_DIARY3, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);
 
    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }
 
    hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_DIARY3));
 
    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }
 
    return (int) msg.wParam;
}
 
 
 
//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage are only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;
 
    wcex.cbSize = sizeof(WNDCLASSEX);
 
    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_DIARY3));
    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCE(IDC_DIARY3);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
 
    return RegisterClassEx(&wcex);
}
 
ATOM RegisterSecondWindowClass()
{
    WNDCLASSEX wc = {0};
 
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wc.hCursor = LoadCursor(NULL,IDC_ARROW);
    wc.hIconSm = LoadIcon(NULL,IDI_APPLICATION);
    wc.hInstance = hInst;
    wc.lpfnWndProc = SecWndProc;
    wc.lpszClassName = SecondWindowClassName;
    wc.style = CS_HREDRAW|CS_VREDRAW;
   
    return RegisterClassEx(&wc);
  
}
 
 
//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;
 
   hInst = hInstance; // Store instance handle in our global variable
 
   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
 
   if (!hWnd)
   {
      return FALSE;
   }
 
   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);
 
   return TRUE;
}
 
//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
int sx,sy;
 
 
 
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;
    Event an_event;
    static HWND SecondWindow,hEdit;
 
    switch (message)
    {
    case WM_CREATE:
        
        break;
    case WM_SIZE:
        sx = LOWORD(lParam);
        sy = HIWORD(lParam);
        
        break;
    case WM_COMMAND:
        wmId    = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case ID_WATCH:
            RegisterSecondWindowClass();
            //ПОЧЕМУ ЭТА ФУНКЦИЯ НЕ СРАБАТЫВАЕТ?????????
            SecondWindow = CreateWindow(SecondWindowClassName,_T("Current events"),WS_SYSMENU|WS_POPUP|WS_VISIBLE|
                            WS_THICKFRAME|WS_CAPTION,sx/2,sy/2,min(sx,sy),min(sx,sy),hWnd,0,hInst,NULL);
            if (!SecondWindow)
            MessageBox (hWnd,"Can't create window","Error",MB_OK);
            
            break;
        case ID_CREATE:
            hEdit = CreateWindow(WC_EDIT,NULL,WS_CHILD|WS_VISIBLE|WS_HSCROLL|WS_VSCROLL|ES_LEFT|ES_MULTILINE|
                                 ES_AUTOHSCROLL|ES_AUTOVSCROLL,0,0,0,0,hWnd,(HMENU)1,hInst,NULL);
            
            MoveWindow(hEdit,0,0,sx,sy,TRUE);
            break;
        case ID_EXIT:
            DestroyWindow(hWnd);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        // TODO: Add any drawing code here...
 
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}
 
LRESULT CALLBACK SecWndProc (HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
    PAINTSTRUCT ps;
    HDC hdc;
 
   switch (message)
   {
   case WM_CLOSE:
       DestroyWindow(hWnd);
       break;
   case WM_SIZE:
       break;
   case WM_PAINT:
       hdc = BeginPaint(hWnd,&ps);
       EndPaint(hWnd,&ps);
       break;
   }
   return 0;
}

return DefWindowProc(hWnd, message, wParam, lParam);